Sometime around 2011 or 2012, it suddenly became very easy to predict what people would be doing in public places: Most would be looking down at their phones. For years, mobile phones weren’t much to look at. The screens were small, and users needed to press the same key several times to type a single letter…
Ebay data tells us something about pay per click advertising
Ebay spends tons of cash on pay per click marketing; they must do because last month they received more sponsored advert impressions than any other site – over three billion of them. And that’s almost
